Home / 2,788.38-3,847.92-1,609.44

Finding the Fourth Proportional to 2,788.38, 3,847.92 and 1,609.44

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Solution

The fourth proportional to 2,788.38, 3,847.92 and 1,609.44 is: 2,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.38 : 3,847.92 = 1,609.44 : x
  2. Step 2: Convert to fraction form
    2,788.38/3,847.92 = 1,609.44/x
  3. Step 3: Cross multiply
    2,788.38x = 3,847.92 × 1,609.44
  4. Step 4: Simplify right side
    2,788.38x = 6,192,996.36
  5. Step 5: Solve for x
    x = 6,192,996.36/2,788.38
  6. Step 6: Final answer
    x = 2,221.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.